CN202042110U - Capillary type peltier effect demonstration instrument - Google Patents
Capillary type peltier effect demonstration instrument Download PDFInfo
- Publication number
- CN202042110U CN202042110U CN2011201701424U CN201120170142U CN202042110U CN 202042110 U CN202042110 U CN 202042110U CN 2011201701424 U CN2011201701424 U CN 2011201701424U CN 201120170142 U CN201120170142 U CN 201120170142U CN 202042110 U CN202042110 U CN 202042110U
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- peltier effect
- capillary type
- demonstrator
- liquid
- type peltier
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Abstract
The utility model relates to a capillary type Peltier effect demonstration instrument, belonging to the technical field of physical teaching instruments and apparatus. The capillary type Peltier effect demonstration instrument comprises a thermocouple, two liquid containers, a direct current power supply and two capillaries, wherein the lower ends of the two capillaries are extended into the two liquid containers filled with liquid with different colors, the thermal end and the cold end of the thermocouple are respectively connected with the two liquid containers, and the thermocouple and the direct current power supply are connected in series to form a closed circuit. The capillary type Peltier effect demonstration instrument has the advantages of being capable of observing Peltier effect through liquid level changes in the capillaries, intuitive for demonstration phenomenon, easy to observe, having clear, sensitive and accurate effects, and being simple in structure, convenient to manufacture and low in cost.
Description
Technical field
The utility model relates to a kind of Peltier effect apparatus for demonstrating, and especially a kind of capillary type Peltier effect demonstrator that is used for thermopair belongs to physics teaching instrument and equipment technical field.
Background technology
Two kinds of different metals constitute the closed-loop path, when having DC current in the loop, energy transfer phenomenon can take place, to produce the temperature difference between two joints, a joint emits the heat heating, and another joint absorbs heat and turns cold, and this phenomenon is called Peltier effect.The physical principle of Peltier effect is: charge carrier moves in conductor and forms electric current because charge carrier is in different energy levels in different materials, when it from high level when low-lying level is moved, just discharge unnecessary energy; On the contrary, when high level moves, absorb energy from low-lying level from the external world, the form that energy is sentenced heat at the interface of two materials absorbs or emits.
Display device is the important component part of Peltier effect demonstrator, and its function is that the quality of display device has determined the demonstration effect of Peltier effect demonstrator with in face of the intuitive and accurate observer of being presented on of physical phenomenon.
At present, existing display device, mode according to demonstration is broadly divided into temperature tabular form demonstrator and tank instrumented demonstrator two major types, temperature tabular form demonstrator is made up of thermopair, transducer and thermometer, lead is connected in turn thermopair and transducer and thermometer, thereby reach the purpose of demonstration Peltier effect, but temperature tabular form demonstrator has following shortcoming: temperature tabular form demonstrator need cause that electric heating conversion is inaccurate, cost is high easily with transducer, and the demonstration effect is not directly perceived, not obvious.The design feature of tank instrumented demonstrator is: connect tank with the thermopair group, tank is connected with thermometer again, thereby reaches demonstration purpose.But tank instrumented demonstrator has two tanks, causes the demonstrator volume big, makes troubles to the demonstrator easily and demonstrates DeGrain and not directly perceived.
Summary of the invention
The utility model provides a kind of novelty simple in structure, demonstrates the capillary type Peltier effect demonstrator that effect is accurate, demonstrative process directly perceived, be easy to observe at the deficiencies in the prior art.
The technical solution of the utility model is as follows:
A kind of capillary type Peltier effect demonstrator, comprise thermopair, two liquid containers and direct supply, it is characterized in that: also comprise two capillaries, the lower end of described two capillaries is stretched into respectively in two liquid containers that liquid is housed, the hot junction of thermopair links to each other with two liquid containers respectively with cold junction, and described thermopair and direct supply are connected into the closed-loop path.
Described two tops capillaceous are provided with expands the chamber.
Described two kapillaries are on the sustained height.
Described direct supply is two joint 1.5V batteries of series connection.
This kapillary Peltier effect demonstrator is arranged on the fixed mount.
Preferably, in described two liquid containers different liquid alcohol of two colors is housed.Liquid in the container is the advantage of the different alcohol of color: liquid rises sensitive, directly perceived, the demonstration effect accurately, be easy to observe.
The beneficial effects of the utility model are:
1, capillary type Peltier effect demonstrator of the present utility model is observed Peltier effect by the variation of liquid level in the kapillary, and demonstrative process is directly perceived, and observation and effect are obvious, sensitive, accurate easily.
2, the utility model is simple in structure, easy to make, cost is low; Capillary type Peltier effect demonstrator adopts alcohol as showing liquid, and the boiling point of alcohol is low to responsive to temperature and free from environmental pollution.
Description of drawings
Fig. 1 is the structural representation of capillary type Peltier effect demonstrator.
Wherein, 1, kapillary a; 2, kapillary b; 3, pyrometer fire-end; 4, thermocouple cold junction; 5, power supply; 6, liquid container; 7, fixed mount.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, but the utility model protection domain is not limited thereto.
Embodiment 1:
As shown in Figure 1, a kind of capillary type Peltier effect demonstrator, this capillary type Peltier effect demonstrator is arranged on the fixed mount 7, and fixed mount is vertical organic glass fixed mount, convenient moving and observation.
Capillary type Peltier effect demonstrator comprises thermopair, two liquid containers 6, kapillary a1 and kapillary b2, kapillary a1 and kapillary b2 are on the sustained height, the lower end of kapillary a1 is stretched into and is equipped with in the red alcohol liquid container 6, the lower end of kapillary b2 is stretched into and is equipped with in the blue alcohol liquid container 6, kapillary a1 is identical with liquid level in the kapillary b2, the top of kapillary a1 and kapillary b2 is provided with expands the chamber, the chamber volume that expands is bigger, can be used for the liquid that splendid attire rises, avoid liquid to overflow.Kapillary a1 and kapillary b2 and the sealing of liquid container 6 joints.Two liquid containers 6 link to each other with thermocouple cold junction 4 with pyrometer fire-end 3 respectively.The best results when bottom of two liquid containers 6 links to each other with thermocouple cold junction 4 with pyrometer fire-end 3 respectively.Thermopair is for adopting the electric conductor of two kinds of different materials, and two contact jaws of these two kinds of electric conductors are respectively hot junction and cold junction, and pyrometer fire-end 3 and thermocouple cold junction 4 are connected into the closed-loop path with direct supply 5.Direct supply is two joint 1.5V batteries of series connection.
Principle of work of the present utility model:
Connect direct supply, make the thermopair energising, the cold two ends of hot thermocouple produce different temperatures, and temperature rising liquid in container obviously rises a capillary liquid level; Another capillary liquid level is constant.Two kapillaries produce very tangible different liquid levels, and Peltier effect intuitively, significantly be presented in face of the observer.
Claims (5)
1. capillary type Peltier effect demonstrator, comprise thermopair, two liquid containers and direct supply, it is characterized in that: also comprise two capillaries, the lower end of described two capillaries is stretched into respectively in two liquid containers that liquid is housed, the hot junction of thermopair links to each other with two liquid containers respectively with cold junction, and described thermopair and direct supply are connected into the closed-loop path.
2. according to the described capillary type Peltier effect of claim 1 demonstrator, it is characterized in that: the top of described two capillaries is provided with expands the chamber.
3. according to the described capillary type Peltier effect of claim 1 demonstrator, it is characterized in that: described two capillaries are on the sustained height.
4. according to the described capillary type Peltier effect of claim 1 demonstrator, it is characterized in that: described direct supply is two joint 1.5V batteries of series connection.
5. according to the described capillary type Peltier effect of claim 1 demonstrator, it is characterized in that: this kapillary Peltier effect demonstrator is arranged on the fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201701424U CN202042110U (en) | 2011-05-25 | 2011-05-25 | Capillary type peltier effect demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201701424U CN202042110U (en) | 2011-05-25 | 2011-05-25 | Capillary type peltier effect demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042110U true CN202042110U (en) | 2011-11-16 |
Family
ID=44969547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201701424U Expired - Fee Related CN202042110U (en) | 2011-05-25 | 2011-05-25 | Capillary type peltier effect demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927925A (en) * | 2014-04-28 | 2014-07-16 | 蚌埠市创新科普产品工程研究中心有限公司 | Semi-conductor refrigerating demonstrator |
-
2011
- 2011-05-25 CN CN2011201701424U patent/CN202042110U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927925A (en) * | 2014-04-28 | 2014-07-16 | 蚌埠市创新科普产品工程研究中心有限公司 | Semi-conductor refrigerating demonstrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20130525 |